Q.: Our company has been awarded the floor contract for a hospital. We will have to reach out as much as 200 feet and place 50 cubic yards per hour to make slabs up to 40 feet wide at heights up to 75 feet. Our cranes will not reach far enough to place concrete in the middle of the building. What alternative would you suggest that we could use without any backup method?
A.: A small pump could move concrete at this rate for the distances described. A dual 4-inch line system could be used to place the 40-foot-wide slabs.